Dictionary

Glossary of game theory terms.

Perfect Information

A sequential game is one of perfect information if only one player moves at a time and if each player knows every action of the players that moved before him at every point. Technically, every information set contains exactly one node. Intuitively, if it is my turn to move, I always know what every other player has done up to now. All other games are games of imperfect information.

updated: 15 August 2005
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